Datasheet MAX9709ETN+D - Maxim Audio Amplifiers 20W/40W Filterless Class D Amplifier — 数据表

Maxim MAX9709ETN+D

Part Number: MAX9709ETN+D

详细说明

Manufacturer: Maxim

Description: Audio Amplifiers 20W/40W Filterless Class D Amplifier

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Docket:
19-3769; Rev 0; 9/05
KIT ATION EVALU ILABLE AVA
25W/50W, Filterless, Spread-Spectrum, Stereo/Mono, Class D Amplifier
General Description
The MAX9709 stereo/mono, Class D audio power amplifier delivers up to 2 x 25W into an 8 stereo mode and 1 x 50W into a 4 load in mono mode while offering up to 87% efficiency.

The MAX9709 provides Class AB amplifier performance with the benefits of Class D efficiency, eliminating the need for a bulky heatsink and conserving power. The MAX9709 operates from a single +10V to +22V supply, driving the load in a BTL configuration. The MAX9709 offers two modulation schemes: a fixed-frequency modulation (FFM) mode, and a spread-spectrum modulation (SSM) mode that reduces EMI-radiated emissions. The MAX9709 can be synchronized to an external clock from 600kHz to 1.2MHz. A synchronized output allows multiple units to be cascaded in the system. Features include fully differential inputs, comprehensive click-and-pop suppression, and four selectable-gain settin

Specifications:

  • Audio Load Resistance: 8 Ohm
  • Available Set Gain: 36 dB
  • Common Mode Rejection Ratio (Min): 70 dB
  • Input Signal Type: Differential
  • Maximum Power Dissipation: 3.81 W
  • Mounting Style: SMD/SMT
  • Operating Supply Voltage: 10 V to 22 V
  • Operating Temperature Range: - 40 C to + 85 C
  • Output Power: 29 W
  • Output Signal Type: Differential
  • Output Type: 1-Channel Mono, 2-Channel Stereo
  • Package / Case: TQFN-56
  • Packaging Type: Tube
  • Product: Class-D
  • Supply Current: 20 mA
  • Supply Type: Single
  • Supply Voltage Range: 10 V to 22 V
  • THD plus Noise: 0.1 %
  • RoHS: Yes